Home / 7,475.36-11,213.40-2,858

Finding the Fourth Proportional to 7,475.36, 11,213.40 and 2,858

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Solution

The fourth proportional to 7,475.36, 11,213.40 and 2,858 is: 4,287.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.36 : 11,213.40 = 2,858 : x
  2. Step 2: Convert to fraction form
    7,475.36/11,213.40 = 2,858/x
  3. Step 3: Cross multiply
    7,475.36x = 11,213.40 × 2,858
  4. Step 4: Simplify right side
    7,475.36x = 32,047,897.20
  5. Step 5: Solve for x
    x = 32,047,897.20/7,475.36
  6. Step 6: Final answer
    x = 4,287.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.